Richtek RT6254 | Demoboard EVB_RT6254AHGJ6F

Beschreibung

The RT6254A is a high-efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 4A output current from a 4.5V to 18V input supply. The RT6254A adopts ACOT architecture to allow the transient response to be improved and keep in constant frequency. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. Fault conditions also include output under voltage protection and thermal shutdown.

Eigenschaften

• 4.5V to 18V Input Voltage Range
• 4A Output Current
• Constant-on-Time Mode to Enables Fast Transient Response
• Low Output Ripple and Allows Ceramic Output Capacitor
• 500kHz Switching Frequency
• High Efficient Internal Power MOSFET Switch Optimized for Lower Duty Cycle Applications
• Integrated 48mΩ/25mΩMOSFETs
• Adjustable Output Voltage from 0.6V to 5V
• Internal Soft-Start (1.5ms typ.)
• Built-In UVP/OTP
• Power Good Indicator (90%)
• Input Under Voltage Lockout

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers